the Gallium driver for your hardware. For example</p>
<pre>
- $ ./configure --enable-gles-overlay --with-state-trackers=egl,vega --enable-gallium-intel
+ $ ./configure --enable-gles-overlay --enable-openvg --enable-gallium-intel
</pre>
<p>The main library and OpenGL is enabled by default. The first option enables
-<a href="opengles.html">OpenGL ES 1.x and 2.x</a>. The <code>egl</code> state
-tracker is needed by a number of EGL drivers. EGL drivers will be covered
-later. The <a href="openvg.html">vega state tracker</a> provides OpenVG
-1.x.</p>
+<a href="opengles.html">OpenGL ES 1.x and 2.x</a>. The second option enables
+<a href="openvg.html">OpenVG</a>.
+</p>
+
</li>
<li>Build and install Mesa as usual.</li>
</li>
-<li><code>--with-state-trackers</code>
-
-<p>The argument is a comma separated string. It is usually used to specify the
-rendering APIs, such as OpenVG, to build. But it is also used to specify
-<code>egl</code> state tracker that <code>egl_gallium</code> depends on.</p>
-
-</li>
-
<li><code>--enable-gles-overlay</code>
-<p>OpenGL and OpenGL ES are not controlled by
-<code>--with-state-trackers</code>. OpenGL is always built. To build OpenGL
-ES, this option must be explicitly given.</p>
+<p>OpenGL is built by default. To build OpenGL ES, this option must be
+explicitly given.</p>
</li>
</li>
+<li><code>--enable-openvg</code>
+
+<p>OpenVG must be explicitly enabled by this option.</p>
+
+</li>
+
</ul>
<h2>Use EGL</h2>
<p><code>egl_gallium</code> dynamically loads hardware drivers and client API
modules found in <code>EGL_DRIVERS_PATH</code>. Thus, specifying this variable
-alone is not sufficient for <code>egl_gallium</code> for uninstalled build.</p>
+alone is not sufficient for <code>egl_gallium</code> for an uninstalled
+build.</p>
</li>
<p>This driver is based on Gallium3D. It supports all rendering APIs and
hardwares supported by Gallium3D. It is the only driver that supports OpenVG.
-The supported platforms are X11, KMS, FBDEV, and GDI.</p>
+The supported platforms are X11, DRM, FBDEV, and GDI.</p>
</li>
<p>This driver supports the X Window System as its window system. It functions
as a DRI2 driver loader. Unlike <code>egl_glx</code>, it has no dependency on
-<code>libGL</code>. It talks to the X server directly using DRI2 protocol.</p>
-
-</li>
-<li><code>egl_dri</code>
-
-<p>This driver lacks maintenance and does <em>not</em> build. It is similiar
-to <code>egl_dri2</code> in that it functions as a DRI(1) driver loader. But
-unlike <code>egl_dri2</code>, it supports Linux framebuffer devices as its
-window system and supports EGL_MESA_screen_surface extension. As DRI1 drivers
-are phasing out, it might eventually be replaced by <code>egl_dri2</code>.</p>
+<code>libGL</code>. It talks to the X server directly using (XCB-)DRI2
+protocol.</p>
</li>
</ul>
<ul>
<li>Pass the conformance tests</li>
-<li>Reference counting in main library?</li>
<li>Mixed use of OpenGL, OpenGL ES 1.1, and OpenGL ES 2.0 is supported. But
which one of <code>libGL.so</code>, <code>libGLESv1_CM.so</code>, and
<code>libGLESv2.so</code> should an application link to? Bad things may happen
<h2>Building the library</h2>
<ol>
-<li>Build Mesa3D with Gallium3D. Any build that builds Gallium3D libraries, EGL, and Gallium EGL drivers will suffice</li>
-<li>cd src/gallium/state_trackers/vega; make</li>
-<li>The last step will build libOpenVG library. You can add the libdir to LD_LIBRARY_PATH or install libOpenVG</li>
+<li>Run <code>configure</code> with <code>--enable-openvg</code>. If you do
+not need OpenGL, you can add <code>--disable-opengl</code> to save the
+compilation time.</li>
+
+<li>Build and install Mesa as usual.</li>
</ol>
<h3>Sample build</h3>
A sample build looks as follows:
<pre>
- $ ./configure --with-state-trackers=egl,vega --enable-gallium-intel
+ $ ./configure --disable-opengl --enable-openvg
$ make
$ make install
</pre>
-<h2>OpenVG Demos</h2>
+<p>It will install <code>libOpenVG.so</code>, <code>libEGL.so</code>, and one
+or more EGL drivers.</p>
-<p>
-To build the OpenVG demos:
-</p>
-<pre>
- cd progs/openvg
- make
-</pre>
-<p>
-To run a demo:
-</p>
-<pre>
- cd openvg/demos
- ./lion
-</pre>
+<h2>OpenVG Demos</h2>
+<p>OpenVG demos can be found in mesa/demos repository.</p>
</body>
</html>